Valve rod and valve clack connecting structure of ball valve and ball valve

The invention discloses a valve rod and valve clack connecting structure of a ball valve. The valve rod and valve clack connecting structure comprises a valve clack, a valve rod, pin rollers and an end cap. The valve clack is provided with a blind hole. The valve rod is connected into the blind hole. The valve clack and the valve rod are provided with opposite circumferential faces. The circumferential faces are provided with a first annular groove and a second annular groove correspondingly. The valve clack is further provided with filling holes. The multiple pin rollers are arranged in a cavity formed jointly by the first annular groove and the second annular groove through the filling holes in a filling manner, and the end cap blocks the filling hole. The invention further discloses theball valve. The anti-shear ability of the ball valve can be conveniently improved. 本发明公开了种球形阀的阀杆和阀瓣连接结构，包括阀瓣、阀杆、滚柱以及堵头，所述阀瓣上开设盲孔，所述阀杆连接于所述盲孔内，所述阀瓣与所述阀杆具有相对的圆周面，各所述圆周面上分别开设第环形槽与第二环形槽，所述阀瓣上还开设有灌装孔，多个所述滚柱通过所述灌装孔灌装于所述第环形槽与所述第二环形